Centrifugal ore-filter



(No Model,)

T. T. EYRE'.

OENTRIFUGAL ORE FILTER. N0. 315,398. Patented A r."7, 188 5..

ATTORNEYS.

N. Pzrzns Phommho mbm. wall-hm". n.c.'

Umrera STATES PATENT @r rce.

THOMAS T. EYRE, OF GARLISLE, TERRITORY OF NEW MEXICO.

.CENTRIFUGAL: ORE-FILTER.

QPECIPICAI'ION forming part of Letters Patent No. 315,398, dated April.7, 1 885.

. Application filed November 6, 1884. (No model.) r

To aZZ whom it may concern:

Be it known that I, THOMAS T. 'EYRE, a citizen of Garlisle, Grantcounty, New Mexico,

haveinvented certain new and useful Improveto discharge the valuableproperties and the refuse matter from different outlets; to which end myinvention consists in the construction and combination of partshereinafter described and claimed, reference being had to theaccompanying drawings, in which- Figure 1 is a central vertical section,part in elevation, of my centrifugal ore-filter; and Fig. 2 is ahorizontal section at w as, Fig. l.

A represents an outer shell or kettle mounted on a fixed frame, 13, andprovided with a cover, 0, which is removably fastened onto the kettle byscrew-bolts D or otherwise.

E is a screw plug or cap closing tightly the hole at which thepulverized ore is admitted to the kettle.

F is a basket or screen made of perforated metal and mounted on thehollow vertical shaft G, to revolve therewith. The shaft is revolved byany usual means, such as the beveled gear-wheels J.

H represents a series of ribs on the inner face of the screen to stiffenit under the load which it has to carry. These ribs are curved andplaced somewhat tangential to the central shaft or spiral, to assist thecentrifugal action of the revolving screen to force the semi-fluid oreagainst the sides of the screen.

Irepresents aseries of bracing-arms secured at their inner ends to theshaft G, and at their bottoms to the screen F. Thesearms brace andstiffen the attachment of the screen to the shaft, and they are spirallycurved, like the ribs H, to assist the centrifugal action.

The upper edge of the screen F is provided with an inward flange, K, toprevent the ore from slopping over.

ed cap N,

required.

or'less as it is lowered or raised by being The hollow shaft G isprovided with ports .L, which serve as the exit of the refuse matter. Mis a valve fitted to cover the ports L more screwed down or up throughthe screw-thread- Ois the hand-wheel of the valve, and P is a ing,thereby washing the refuse out through the ports.

hand-wheel check-nut, used to bind the valve- 1 screw from turning. Q,is a water'pipe pointing toward the ports L, and adapted to direct astream of water butler pressure onto the refuse matter which graduallygathers over the ports in discharg- R is a pipe for the admission ofsteam when S is a pipe for the admission of gaseous fluids such as aquaammonia, hyposulphite of soda and lime, &c.hot water or steam be;

ing used as a solvent to assist in disintegrating the ores anddissolving the metals. This pipe is closed at its end and perforatedalong its sides, and it is bent from a vertical position at a littledistance from the side of the screen toward the center to lie across thedirection of travel of the ore, that it may distribute the gasthroughout the mass of ore.

'I is a water-pipe entering a distributer, U,

which is a passage on the outside of the kettle and connected with theinterior thereof by a great many fine holes for the purpose ofdistributing the water from top to bottom of the kettle to wash thescreen while discharging.

V is a similar water-pipe, and it maybe similarly connected with thekettle, or it may enter directly into the kettle, as shown,

W and Y are discharge-pipes, which may be connected with diflerentreceptacles-the one to hold the richer and the other the poorer All theoutlet and inlet pipes are provided too with stop-cocks by which theymay be put in service or be stopped at pleasure.

The pipe W may be used to discharge the liquid rich in gold, silver,copper, 850., and the poorer liquids may be discharged by the pipe Y.Any number of these pipes may be used to separate the fluids as much asdesired.

When the screen or basket is reversed, the ribs H and I help thedischarge of mud or light refuse by drawing it centrally toward thedischarge-ports L. The fine particles of metal mingled with thesemifiuid mass are heavier than the sand or mud particles, and aretherefore thrown out through the periphery of the basket by centrifugalforce and run down in the kettle to the discharge-valves W and Y. Thatmetal which is the heaviest sinks the lowest, and one of the said valvesmay be placed lower or nearer center than the other to select anddischarge the heaviest ore. The outlets L are within the basket orscreen F, and serve to discharge the mud or light refuse.

WVhat I claim as my invention, and desire to secure by Letters Patent,is

1. The combination, with the kettle A and the screen F, verticallyjournaled therein, of the cover 0, secured thereon with screw or swingbolts, and the screw-plug E, fitted in the lid, as shown and described.

2. The combination, with the kettle A and screen F, vertically journaledtherein, and the removable cover 0, of the pipe S, passing through thecover at some distance from the edge thereof, bent toward center, closedat the end, and perforated along its sides, as and for the purposespecified.

3. The combination, with the kettle A and the screen F, of the hollowvertical shaft G, supporting the screen, and the valve M, provided witha screw-shank and external handwheel, 0, and a check-nut, P, the hollowshaft being provided with ports L, substantially as shown and described.

4. The combination, with the kettle A, the

screen F, and its vertical shaft G, of the ribs H, extending from ornear the top of the screen down its sides to near its center ofrevlution in a spiral direction, as shown and described.

5. The combination, with the kettle A, the screen F, and its verticalshaft G, of the arms I, secured at their inner ends to the said shaft,secured along their bottoms to the screen, and extending away from theshaft spirally, as and for the purpose specified.

6. The combination, with the kettle A and the screen F, verticallyjournaled therein, of the passage U, extending from near the top to nearthe bottom of the kettle and connected therewith throughout its heightby perforations in the kettle, and the pipe T, connected with passage U,as shown and described, for the purpose specified.

THOS. T. EYRE. I Witnesses:

B. KAoLIsH, A. M. ROBERTSON.

